This behavior is programmed into the transmission controller so that when its self-diagnostic capability has detected a fault that could cause damage it will only drive in 2nd gear which uses a minimum number of circuits. It is called "limp-in" mode.
the best ting to do is to get a "readout of the transmission computer" (not th same plug as the engine computer) which is an electronic test for the presence of coded numbers representing different faults that the transmission is experiencing at the time when it locks up into 2nd gear.
check your water...
No get up and go on take off? That's because it's not supposed to fly...
Convection causes it to rise, causing a valley breeze
Have the transmission checked for codes. That will tell you the possible causes.
Im going through the same thing on my 96 Plymouth Breeze...Ends up my oil pan rusted through! Now I gotta find a way to get to the last screw that's buried. If your oil pan isn't rusted through, make sure your oil filter and the plug are tight.
The sun
The only difference - is the direction of flow. A sea breeze blows from the sea onto the land. A land breeze flows in the opposite direction.
The land breeze causes the air to move counterclockwise
A banana wind is created when banana trees are swaying in the wind and causes a breeze to go by you, creating a breeze that smells like a banana.
convection
p0171 fuel system lean bank 1 Causes include faulty oxygen sensor, weak fuel pump, plugged fuel filter, low fuel pressure, misfire, faulty map sensor, etc.
Land and sea breeze are caused by Convectional Current.